81088742 ÷ 490 
The aim is to understand the frequency of 490 in 81088742.

Step 1:
8 divided by 490 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 490

Step 2:
490 goes into 81 0 times with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Take the next digit (0) from the dividend and append it to 81, then repeat: 810 / 490

Going ahead to step 3:
810 divided by 490 is 1 with a remainder of 320.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 490 from 810 leaves us with 320.
Bring next digit (8) of the dividend behind the 320 and repeat the process: 3208 / 490

Advancing to step 4:
If we divide 3208 by 490, we get 6 and a remainder of 268.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 2940 away from 3208, we end up with 268.
Bring next digit (8) of the dividend behind the 268 and repeat the process: 2688 / 490

Let's proceed to step 5:
2688 divided by 490 is 5 with a remainder of 238.
The next digit of our result is 5. 
Result so far: 165.0
If we take 2450 away from 2688, we end up with 238.
Append the next digit (7) from the dividend to 238 and continue with: 2387 / 490

Advancing to step 6:
490 goes into 2387 4 times with a remainder of 427.
Use 4 as the next digit of our solution. 
Result so far: 1654.0
If we take 1960 away from 2387, we end up with 427.
Include the next digit (4) from the dividend after 427, then repeat: 4274 / 490

Advancing to step 7:
490 goes into 4274 8 times with a remainder of 354.
The next digit of our result is 8. 
Result so far: 16548.0
Subtract 3920 from 4274 to get 354.
Append the next digit (2) from the dividend to 354 and continue with: 3542 / 490

Advancing to step 8:
If we divide 3542 by 490, we get 7 and a remainder of 112.
Use 7 as the next digit of our solution. 
Result so far: 165487.0
Deduct 3430 from 3542 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 9:
1120 divided by 490 is 2 with a remainder of 140.
Record the quotient 2 as the next digit in the result. 
Result so far: 165487.2
Subtract 980 from 1120 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 10:
490 can be fit into 1400 2 times, resulting in a remainder of 420.
The number 2 becomes the next digit in our result. 
Result so far: 165487.22
If we subtract 980 from 1400, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

In conclusion, the division gives 165487.22 with a balance of 0.42.